本程序采用随机网格生成法和多阶曲线差值方法，实现了对三维地形的模拟，地形绘制采取了纹理贴图的方法-This program uses random grid generation method and the method of multi-degree curve of the difference, the realization of three-dimensional terrain modeling, terrain rendering texture mapping method a

简化3d模型网格数，生成适合在LOD中使用的多层次模型。(It simplifies the number of grid in 3D model and generates multi-level models suitable for LOD.)